Coupling Ni Single Atomic Sites with Metallic Aggregates at Adjacent Geometry on Carbon Support for Efficient Hydrogen Peroxide Electrosynthesis
© 2024 The Authors. Advanced Science published by Wiley‐VCH GmbH..
Single atomic catalysts have shown great potential in efficiently electro-converting O2 to H2O2 with high selectivity. However, the impact of coordination environment and introduction of extra metallic aggregates on catalytic performance still remains unclear. Herein, first a series of carbon-based catalysts with embedded coupling Ni single atomic sites and corresponding metallic nanoparticles at adjacent geometry is synthesized. Careful performance evaluation reveals NiSA/NiNP-NSCNT catalyst with precisely controlled active centers of synergetic adjacent Ni-N4S single sites and crystalline Ni nanoparticles exhibits a high H2O2 selectivity over 92.7% within a wide potential range (maximum selectivity can reach 98.4%). Theoretical studies uncover that spatially coupling single atomic NiN4S sites with metallic Ni aggregates in close proximity can optimize the adsorption behavior of key intermediates *OOH to achieve a nearly ideal binding strength, which thus affording a kinetically favorable pathway for H2O2 production. This strategy of manipulating the interaction between single atoms and metallic aggregates offers a promising direction to design new high-performance catalysts for practical H2O2 electrosynthesis.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Advanced science (Weinheim, Baden-Wurttemberg, Germany) - (2024) vom: 11. Apr., Seite e2402240 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wang, Xin [VerfasserIn] |
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| Links: |
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| Themen: |
Heteroatom doped carbon matrix |
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| Anmerkungen: |
Date Revised 12.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/advs.202402240 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM370949161 |
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| 520 | |a © 2024 The Authors. Advanced Science published by Wiley‐VCH GmbH. | ||
| 520 | |a Single atomic catalysts have shown great potential in efficiently electro-converting O2 to H2O2 with high selectivity. However, the impact of coordination environment and introduction of extra metallic aggregates on catalytic performance still remains unclear. Herein, first a series of carbon-based catalysts with embedded coupling Ni single atomic sites and corresponding metallic nanoparticles at adjacent geometry is synthesized. Careful performance evaluation reveals NiSA/NiNP-NSCNT catalyst with precisely controlled active centers of synergetic adjacent Ni-N4S single sites and crystalline Ni nanoparticles exhibits a high H2O2 selectivity over 92.7% within a wide potential range (maximum selectivity can reach 98.4%). Theoretical studies uncover that spatially coupling single atomic NiN4S sites with metallic Ni aggregates in close proximity can optimize the adsorption behavior of key intermediates *OOH to achieve a nearly ideal binding strength, which thus affording a kinetically favorable pathway for H2O2 production. This strategy of manipulating the interaction between single atoms and metallic aggregates offers a promising direction to design new high-performance catalysts for practical H2O2 electrosynthesis | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a heteroatom doped carbon matrix | |
| 650 | 4 | |a hydrogen peroxide electrosynthesis | |
| 650 | 4 | |a nanoparticles | |
| 650 | 4 | |a single atoms | |
| 650 | 4 | |a synergistic effect | |
| 700 | 1 | |a Huang, Run |e verfasserin |4 aut | |
| 700 | 1 | |a Mao, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Tian |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Panjie |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Hai |e verfasserin |4 aut | |
| 700 | 1 | |a Mao, Zhelin |e verfasserin |4 aut | |
| 700 | 1 | |a Han, Chao |e verfasserin |4 aut | |
| 700 | 1 | |a Zheng, Yarong |e verfasserin |4 aut | |
| 700 | 1 | |a Du, Aijun |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Jianwei |e verfasserin |4 aut | |
| 700 | 1 | |a Jia, Yi |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Lei |e verfasserin |4 aut | |
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